Field notes from the world of data extraction.

Articles, interviews and analysis on how data is gathered, used and fought over — written by the people closest to it.

scrapy-items-types
Scraping strategy

A guide to Scrapy item types

Scrapy supports multiple item types, but which should you use, and why.

Ayan Pahwa
Agentic Web Data toolbelt
AI-assisted data extraction

New Zyte add-ons: Agent Skills, Codex, GitHub and more updates

A host of additions to Zyte’s agentic scraping toolbelt helps developers go from prompt to working spider code and beyond.

Valter Sciarrillo10 min read
podcast-ep08
Scraping strategy

Podcast Ep08 - Scrapy, Python and mushroom soup

Scrapy's core handles crawling well and deliberately leaves almost everything else out: no bundled browser, no opinion about how you shape your data, no built-in answer for every anti-bot wrinkle. What it gives you instead is a clean way to add those things at the edges, exactly when you need them and never before.

John Rooney
Extract Summit - Zyte staff

Five reasons to attend this year’s Extract Summit

In its eighth year, Extract Summit is again shaping up to be the web data industry's premier gathering.

Robert Andrews
scrapy-playwright
Scraping practice

The missing middle ground in scrapy-playwright just got filled

You can now choose which Python browser library you want to use with scrapy-playwright. I go through why this is a huge deal for the right scraping demographic.

John Rooney8 min read
harness-engineering-3
AI

Harness Engineering #3- Headless mode: the minimal agent harness

What's the smallest harness that still works? Turns out it's already sitting inside almost every coding agent you have installed — headless mode: same loop, tools, and reasoning as the interactive agent, minus the human in the chair. We point it at a web page and pull clean, structured data out the other end in about ten lines.

Ayan Pahwa12 min read
An automatic Claude writer device, writing code.
AI-assisted data extraction

Claude Fable 5 is the new best model for writing scrapers

We ran nine models, including the new GPT-5.6, through our Zyte Scraping Code Benchmark. Claude Fable 5 puts Sol and others in the shade - but it’s pricey, and the best extraction code still depends on the best infrastructure.

Konstantin Lopukhin8 min read
gpt5-6-cover
AI

GPT-5.6, Fable 5, and GLM-5.2 entered a bar “crawl” and got hit by The Rate Limit

When OpenAI shipped GPT-5.6 and Anthropic's Fable 5 was sitting at the top of the price list, my question was not "which one wins a leaderboard." It was the one I actually pay for: for the scraping I do, how much model do I need to buy?

Ayan Pahwa16 min read
skills-are-software
Open-source

Treat your AI skills like software, starting with evals

Most AI skills are never tested — and it shows. Here's how Zyte evaluates scraping skills like real software, catching failures demos miss.

Neha Setia Nagpal14 min read
scrapy-ai-skills
Scraping practice

AI generated these Scrapy projects - why I won't ship them

What happens if you let AI create a Scrapy project from just a simple prompt? Here's what I got and what I had to fix.

John Rooney1 min read
Harness Engineering, part 2: harnessing a data extraction agent
Large Language Models (LLMs)

Harness Engineering, part 2: harnessing a data extraction agent

Point it at a website, tell it which fields you want, get back clean structured records. That's the agent we're designing in this post — and the interesting part isn't the model, it's the harness decisions that make it actually reliable at scale.

Ayan Pahwa8 min read
Harness Engineering, part 1: what is an agent harness and why it matters
Large Language Models (LLMs)

Harness Engineering, part 1: what is an agent harness and why it matters

Same model, same weights, zero retraining — LangChain changed nothing but the scaffolding around a coding model and jumped it from 30th place to the top five on a benchmark. That scaffolding has a name: the harness. And it's the part you actually control.

Ayan Pahwa8 min read